Guarantor Financial Statements (Unaudited) Condensed Consolidating Statements of Income (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016		Mar. 31, 2015
Revenues	$ 3,527		$ 4,153
Total costs and expenses	7,403		7,116
Operating (loss) income	(3,876)		(2,963)
Interest expense, net	(200)		(146)
Other income (expense), net	38		7
Loss before income taxes and equity in affiliated companies' net earnings	(4,038)		(3,102)
(Provision for) benefit from income taxes	(70)		695
Equity in affiliated companies' net (losses) earnings	7		1
Net loss	(4,101)		(2,406)
Net income and preferred dividends attributable to noncontrolling interests	(83)		(68)
Net loss attributable to common stockholders	(4,184)		(2,474)
Other comprehensive income (loss)	0		12
Total comprehensive (loss) income	(4,184)		(2,462)
Impairment of oil and gas properties	3,787		3,104
FCX Issuer [Member]
Revenues	0		0
Total costs and expenses	27		16
Operating (loss) income	(27)		(16)
Interest expense, net	(137)		(115)
Other income (expense), net	50		29
Loss before income taxes and equity in affiliated companies' net earnings	(114)		(102)
(Provision for) benefit from income taxes	(1,783)		(421)
Equity in affiliated companies' net (losses) earnings	(2,286)		(1,951)
Net loss	(4,183)		(2,474)
Net income and preferred dividends attributable to noncontrolling interests	0		0
Net loss attributable to common stockholders	(4,183)		(2,474)
Other comprehensive income (loss)	0		12
Total comprehensive (loss) income	(4,183)		(2,462)
Impairment of oil and gas properties	0		0
FM O&G LLC Guarantor [Member]
Revenues	78		181
Total costs and expenses	1,629	[1]	1,318	[2]
Operating (loss) income	(1,551)		(1,137)
Interest expense, net	(4)		(4)
Other income (expense), net	0		0
Loss before income taxes and equity in affiliated companies' net earnings	(1,555)		(1,141)
(Provision for) benefit from income taxes	616		1,157
Equity in affiliated companies' net (losses) earnings	(2,704)		(2,359)
Net loss	(3,643)		(2,343)
Net income and preferred dividends attributable to noncontrolling interests	0		0
Net loss attributable to common stockholders	(3,643)		(2,343)
Other comprehensive income (loss)	0		0
Total comprehensive (loss) income	(3,643)		(2,343)
Impairment of oil and gas properties	1,291		1,062
Non-Guarantor Subsidiaries [Member]
Revenues	3,449		3,972
Total costs and expenses	5,741	[1]	5,798	[2]
Operating (loss) income	(2,292)		(1,826)
Interest expense, net	(114)		(57)
Other income (expense), net	42		8
Loss before income taxes and equity in affiliated companies' net earnings	(2,364)		(1,875)
(Provision for) benefit from income taxes	1,095		(35)
Equity in affiliated companies' net (losses) earnings	(3,630)		(3,530)
Net loss	(4,899)		(5,440)
Net income and preferred dividends attributable to noncontrolling interests	(77)		(56)
Net loss attributable to common stockholders	(4,976)		(5,496)
Other comprehensive income (loss)	0		12
Total comprehensive (loss) income	(4,976)		(5,484)
Impairment of oil and gas properties	2,483		2,042
Eliminations [Member]
Revenues	0		0
Total costs and expenses	6		(16)
Operating (loss) income	(6)		16
Interest expense, net	55		30
Other income (expense), net	(54)		(30)
Loss before income taxes and equity in affiliated companies' net earnings	(5)		16
(Provision for) benefit from income taxes	2		(6)
Equity in affiliated companies' net (losses) earnings	8,627		7,841
Net loss	8,624		7,851
Net income and preferred dividends attributable to noncontrolling interests	(6)		(12)
Net loss attributable to common stockholders	8,618		7,839
Other comprehensive income (loss)	0		(12)
Total comprehensive (loss) income	8,618		7,827
Impairment of oil and gas properties	$ 13		$ 0

[1] Includes charges totaling $1.3 billion at the FM O&G LLC guarantor and $2.5 billion at the non-guarantor subsidiaries related to impairment of FCX's oil and gas properties pursuant to full cost accounting rules.

[2] Includes charges totaling $1.1 billion at the FM O&G LLC guarantor and $2.0 billion at the non-guarantor subsidiaries related to impairment of FCX's oil and gas properties pursuant to full cost accounting rules.